21570857

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{613}}^1$

素因数の和:1088

約数の個数: 16

約数和(自身を含む): 26996352

約数和(自身を除く): 5425495

約数列:

[1, 7, 11, 77, 457, 613, 3199, 4291, 5027, 6743, 35189, 47201, 280141, 1960987, 3081551, 21570857]

約数ペア:

[(1, 21570857), (7, 3081551), (11, 1960987), (77, 280141), (457, 47201), (613, 35189), (3199, 6743), (4291, 5027)]